Removable window sash



Dfifi. 4, 1956 w D, LUKE REMOVABLE WINDOW SASH 3 Sheets-Sheet 1 Filed June 10, 1954 FIG. 2

INVENTOR. WADE D. LUKE ATTORNEYS Dec. 4, 1956 w. D. LUKE REMOVABLE WINDOW SASH 3 Sheeis-Sheat 2 FIG. 5

Filed June 10, 1954 INVENTOR.

WADE D. LUKE ATTORNEYS W. D. LUKE REMOVABLE WINDOW SASH Gil 4, 1956 I5 Sheets-Sheet 3 Filed June 10, 1954 FIG. 6

FIG. 7

JNVENTOR. WADE D. LUKE ATTORNEYS United States Patent REMOVABLE WINDOW SASH Wade D. Luke, Akron, Ohio Application June 10, 1954, Serial No. 435,686 4 Claims. or. 20-54 This invention relates to removable window sash and is especially useful in providing sash that may be readily removed as for cleaning.

It has been found desirable to provide window casings and sash therefor such that the sash may be readily removed for cleaning the glass or for replacing glassed sash with screened sash. Such devices as have been proposed for this purpose heretofore have required special casings or casings equipped with displaceable members for removing the sash or have been so constructed as to be of displeasing appearance.

The present invention has for its object a window sash which may be positioned and retained in the usual window casing and may be readily removed therefrom.

Further objects are to provide a removable sash of neat appearance, to provide for converting the usual wooden sash to a removable one, to provide a construction which is adaptable to either wood or metal sash, and to provide a sash which will be frictionally maintained in position without weights and one which will not rattle.

These and other objects will appear from the following description and the accompanying drawings.

Of the drawings:

Fig. l is a perspective view of portions of a window casing and a sash therefor constructed in accordance with and embodying the invention, other parts being broken away, the sash being shown as being in an initial casingentering position.

Fig. 2 is a sectional view of the sash, taken on line 2-2 of Fig. 1.

Fig. 3 is a perspective view of a corner of the sash with the metal parts removed, other portions of the sash being broken away.

Fig. 4 is a perspective view of one end of the displaceable bearing member, other parts being broken away.

Fig. 5 is a perspective view of one of the retaining plates.

Fig. 6 is a perspective view of a portionof a sash showing a modification of the invention, par-ts being broken away, and

Fig. 7 is a cross-sectional view thereof taken on line 7-7 of Fig. 6.

Referring to the drawings, the numeral 10 designates a window casing, having side members 11 and 12 and a sill 13. The side members have ploughed vertical sash grooves 14, 15 for slidably receiving a sash 16. The sash 16 has the usual side rails 17, 18, top rail 19 and bottom rail 20 of wood joined to each other at the corners as by mortice and tenon joints and having a glass receiving rabbet 21 for receiving a glass 22 held in place by putty 23 or the like.

Referring to Fig. 3, the rail 17 is ploughed intermediate the faces of the sash and entirely throughout the rail 17 to provide a clearance groove 25 and the top and bottom rails 19 and 20 are formed with mortices, such as 26, in continuation of such groove 25 for a distance from the corner of the sash. A plurality of blind holes 27, 28 are bored in the rail 17 perpendicular to the margin of the rail 17 and centrally of the groove 25 to provide sockets for receiving coil springs 29, 30.

A displaceable bearing member 31 is conveniently made of bar metal having a width substantially equal to the width of groove 25 and of thickness less than the depth of the groove. The bearing member has a straight bearing portion 32 equal in length to the length of the side rail of the sash and a pair of guide portions 33, 34 perpendicular thereto and extending in the same direction therefrom to slidably engage in the mortices 26.

For retaining the bearing member in place and permitting movement thereof toward and from the sash, retaining plates 35 are provided of a size fitting the mortices 26 over the ends of the bearing member. A plurality of countersunk holes 37 are formed through the retainer plates for wood screws which enter holes 38 in the sash. The ends of the bearing member are formed with slotted openings 39 therealong to clear the screws and permit limited movement of the bearing member.

The sash is made less in Width than the distance between the bottoms of the grooves l4, 15 of the casing and a little wider than the space between the side faces of the casing. This permits the edge of the sash having the bearing strip to be entered in groove 14 and the sash may then be swung into place. The coil springs 29, 30 bear against the bearing strip and are compressed during this movement. When the sash is opposite the roove 15, it snaps into the groove partially relieving compression of the springs 29, 30. A margin of rail 17 will be entered in the groove when the sash is in place so that the bearing strip is concealed and the sash has a bearing on the casing to maintain alignment.

In multiple sash windows where a sealing shelf 45 is provided on the bottom or top rail to span the parting stops, the casing may have a clearance 46 formed adjacent the sash groove of the casing at the end of the side rail to provide clearance for the sealing shelf which if made to extend from casing to casing requires clearance in entering and removing the sash. This may be avoided, however, by making the shelf of slightly less extent than the distance between opposing faces of the casing.

Referring to Figs. 6 and 7 of the drawings, which show a modification of the invention, the bearing members 40 are in the form of metal cylinders which are slidably mounted in bored holes ll of a sash side rail 42 and are seated upon compression coil springs 43 also seated in said holes. This form of the invention requires no ploughing or morticing of the sash. The sash are made the same width relative to the width of the casing as with the form of the invention shown in Fig. 1.

In either form of the invention, the sash may be entered in the casing by first entering the side having the displaceable bearing member in its groove, then displacing the sash toward that groove to compress the springs, and then moving the sash by a rotative movement about the entered side margin as an axis until the. sash is opposite the opposite groove of the casing, and then releasing compression of the springs. In removing the sash, the sash is moved edgewise toward the side having the bearing member and is then removed from the opposite side casing by a swinging movement.

Variations may be made without departing from the spirit and scope of the invention as it is defined by the following claims.

I claim:

1. A slidable sash for use in a casing having opposed grooves in its opposite side members for confining the sash in sliding engagement, said sash being of less width than the distance between the bottom of one of the grooves and the inner face of the opposite casing adjacent its groove and of greater width than the distance between ungrooved portions of both the side casings adjacent said grooves, the edge face of one side rail of said sash having a clearance groove of less width than the thickness of the sash extending throughout its length, and a displaceable bearing member resiliently mounted in said groove for movement toward and away from said side rail and concealed from the face of the sash when the sash is in place by face portions of the sash rail to permit entry of the having a clearance groove of less width than the thickness of'the sash extending throughout its length, and a displaceable bearing member resiliently mounted in said groove for movement toward and away from said side rail and concealed from the face the sash when the sash is in place by face portions of the sash rail to permit entry of the sash in the opposing groove of the casing, and guiding means on said sash for engaging said bearing member.

3. A slidable sash for use in a casing having opposed grooves in its opposite side members for confining the sash in sliding engagement, said sash being of less width than the distance between the bottoms of the grooves and of width equal to the distance between ungrooved portions of the side casings adjacent said grooves plus the depth of one groove, the edge face of one side rail of said sash having a clearance groove of less width than the thickness of the sash extending throughout its length, and a displaceable bearing member resiliently mounted in said groove for movement toward and away from said side rail and concealed from the face of the sash when the sash is in place by face portions of the sash rail to permit entry of 4 the sash in the opposing groove of the casing, and guiding means on said sash for engaging said bearing member, said guiding means comprising mortices for receiving portions of said bearing member and plates in said mortices for guiding said portions.

4. A slidable sash for use in a casing having opposed grooves in its opposite side members for confining the sash in sliding engagement, said sash being of less width than the distance between the-bottoms of the grooves and of width equal to the distance between ungrooved portions of the side casingsadjacent said grooves plus the depth of one groove, the edge face of one side rail of said sash having a clearance groove of less Width than the thickness of the sash extending throughout'its length, and a displaceable bearing member resiliently mounted in said groove for movement toward and away from said side rail and concealed from the face of the sash when the sash is in place by face portions of the sash rail to permit entry of the sash'in'the opposing groove of the casing, and guiding means on said sash for engaging said bearing member, said bearing member having ends turned along the top and bottom rails of the sash, said ends having longitudinal slots, and said guiding means including plates and screws passing through openings in said plates and through said slots 'to'limit outward movement of said bearing member.

'ReferencesCited in the file of this patent UNITED STATES PATENTS 124,491 Hornbake Mar. 12, 1872 452,098 Collins May 12, 1891 458,877 \Natton Sept. 1, 1891 519,415 Thomas May 8, 1894 531,828 Blaine Jan. 1, 1895 2,559,212 =Dilg July 3, 1951 2,595,595 McKay May 6, 1952 2,624,923 Rogers Ian. 13, 1953 2,638,639 Carter May 19, 1953 

